JPS5863110A - Transformer - Google Patents
TransformerInfo
- Publication number
- JPS5863110A JPS5863110A JP16133581A JP16133581A JPS5863110A JP S5863110 A JPS5863110 A JP S5863110A JP 16133581 A JP16133581 A JP 16133581A JP 16133581 A JP16133581 A JP 16133581A JP S5863110 A JPS5863110 A JP S5863110A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- conduit
- pipe
- winding
- liquid guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/18—Liquid cooling by evaporating liquids
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は金属シートと絶縁シートを重ねて巻いた箔状巻
線を備え、かつ巻線内(=冷媒が通される冷却ダクトを
内蔵した変圧器(=関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transformer comprising a foil winding formed by overlapping metal sheets and insulating sheets, and having a built-in cooling duct through which a refrigerant is passed.
箔巻巻線を備えた箔巻変圧器は、占積率がよく、小形・
軽量化を実現できる特長があるため(=、数kV 数
100kV4程度の比較的電圧の低い小容量の変圧器(
二おいてはすでに実用化され、かなり市場(=出まわっ
ている。Foil-wound transformers with foil-wound windings have a good space factor and are small and compact.
Because it has the feature of being lightweight (=, a few kV, a small capacity transformer with a relatively low voltage of about several 100 kV4)
Most of them have already been put into practical use and are widely available on the market.
最近、その優れた長所(=嫌み、より高電圧・大容量の
変圧器例えば275kV、300MvA斐圧器に変圧器
拡大が研究されているが、最大の鍵はいかに冷却能力を
向上させ、高い絶縁能力を巻線にもたせられるかにかか
つている。まだ、このような高電圧大容量変圧器は実用
化はされていないが、この箔巻変圧器の冷却方式として
は、巻線内(二冷却ダクトを(ハ)蔵させ、絶縁特性の
秀れた冷媒を送り込んで巻線損失から発生する熱を直接
的(−冷やす、いわばヒートパイプ式のものが考えられ
ている。Recently, research has been conducted on expanding the transformer to higher voltage/larger capacity transformers, such as 275kV and 300MvA transformers, but the biggest key is how to improve cooling capacity and high insulation capacity. This depends on whether the windings can be equipped with the following: Although such high-voltage, large-capacity transformers have not yet been put to practical use, the cooling method for this foil-wound transformer is that A so-called heat pipe type system is being considered in which the heat generated from the winding loss is directly cooled by storing (c) a refrigerant with excellent insulating properties.
第1図はこのような冷却方式の箔巻変圧器として従来考
えられているものを示したもので、図中4は鉄心主脚1
の外側(二巻かれた低圧巻線、5は前記低圧巻線4の外
側に絶縁バーリヤ9を介して巻かれた高圧巻線であり、
これら巻線4.5は金属シート2と絶縁シート3を重ね
て巻いた箔巻巻線とされている。6は前記巻線4゜5円
(−それぞれ内蔵された絶縁材からなる冷却ダクトであ
り、この冷却ダクト6は薄い平形ダクトな略円筒状に彎
曲させた形状のものであって、巻線中に一緒(二巻込ま
れている。この冷却ダクト6円には、フロン−113や
F’075等の冷媒が通されるようになっており、この
冷媒は冷却ダクト6内を通る過程で巻線内の発熱を冷媒
の蒸発潜熱で噂って巻線を冷却する。そしてこの冷媒は
、凝縮器8において水冷却により冷却されて凝縮され、
液化した冷媒は冷媒タンク14(=貯められてポンプ7
(二より巻線内(=送り込まれる。すなわちこの冷媒循
環回路と変圧器とは分離されている。また、冷媒を尋び
く導液管10はステンレスなど金属で作られているが、
それと冷却ダクトとの接続には絶縁パイプ11が用いら
れ、導液管1oはタンク12などのアース電位とは絶縁
されている。冷却ダクトの電位は巻線内(二巻き込まれ
ている関係上はぼ巻線と同じ電位に電気的(=結合され
ている。また、巻線の絶縁はタンク円(=封入された絶
縁油あるいはSF、ガスといった絶縁媒体で絶縁されて
いる。Figure 1 shows what is conventionally considered as a foil-wound transformer with such a cooling method.
(2-wound low-voltage winding; 5 is a high-voltage winding wound outside the low-voltage winding 4 via an insulating barrier 9;
These windings 4.5 are foil-wound windings in which the metal sheet 2 and the insulating sheet 3 are layered and wound. Reference numeral 6 denotes a cooling duct made of an insulating material built into the winding 4°5 yen (-), and this cooling duct 6 is a thin flat duct curved into a substantially cylindrical shape, A refrigerant such as Freon-113 or F'075 is passed through the cooling duct 6, and as it passes through the cooling duct 6, the refrigerant winds the windings. The windings are cooled by using the latent heat of vaporization of the refrigerant to cool the windings.Then, this refrigerant is cooled and condensed by water cooling in the condenser 8.
The liquefied refrigerant is stored in the refrigerant tank 14 (= stored in the pump 7
(The refrigerant circulation circuit and the transformer are separated from each other.Also, the liquid guiding pipe 10 that receives the refrigerant is made of metal such as stainless steel.
An insulated pipe 11 is used to connect it to the cooling duct, and the liquid guide pipe 1o is insulated from the ground potential of the tank 12 and the like. The potential of the cooling duct is electrically (=coupled) to the same potential as the winding (because it is wound twice).In addition, the insulation of the winding is the tank circle (=filled with insulating oil or It is insulated with an insulating medium such as SF or gas.
1111
なお、第1図(−おいて本発明と直接関係のない巻線の
リード線や、それをタンクの外側に引き出すブッシング
などは省略しである。1111 Note that in FIG. 1 (-), winding lead wires that are not directly related to the present invention, bushings that lead them out to the outside of the tank, etc. are omitted.
この冷却方式の変圧器は冷却のための冷媒が流れる循環
回路と絶縁のための絶縁媒体13とハ完全(1分M(セ
パレート)されている。このことから、この方式の箔巻
変圧器を特(二ここではセパレート式箔巻変圧器と呼ぶ
こと(ニする。The transformer of this cooling method is completely separated from the circulation circuit through which the refrigerant flows for cooling and the insulating medium 13 for insulation.For this reason, the foil-wound transformer of this method is Here, it is referred to as a separate foil-wound transformer.
この冷却方式の変圧器は、冷媒の蒸発潜熱を利用してい
るので、優れた冷却特性を期待でき。Transformers using this cooling method utilize the latent heat of vaporization of the refrigerant, so you can expect excellent cooling characteristics.
大容量変圧器(=有望である。Large capacity transformer (= promising.
しかしながら、上記従来の変圧器は、巻線内に内蔵され
る冷却ダクト6と導液管10とを接続するパイプ11を
絶縁性のものとしてはいるが、高電圧の変圧器(二なる
と、絶縁パイプ11(−かかる電圧が高くなるため(−
1絶縁パイプ面に沿ってリークを発生すること(=なり
(この絶縁パイプにおける沿面絶縁破壊は特(=高圧側
巻線部において多発する)、この絶縁パイプ11(=お
ける沿面絶縁破壊(二よって変圧器が絶縁破壊するとい
う問題があった。However, in the conventional transformer described above, although the pipe 11 that connects the cooling duct 6 built into the winding and the liquid guide pipe 10 is insulated, Pipe 11 (- because the applied voltage increases (-
1 Leakage occurs along the surface of the insulated pipe. There was a problem of insulation breakdown in the transformer.
本発明は上記の点に嫉みなされたものであって、その目
的とするところは、冷却ダクトと導液管との接続部(二
おける沿面絶縁破壊という問題をなくした、信頼性が高
く、高圧化を実現することができる変圧器を提供するこ
と(二ある。The present invention has been made in view of the above-mentioned points, and its purpose is to provide a highly reliable, high pressure (2) To provide a transformer that can realize
すなわち、本発明の変圧器は、従来の変圧器のよう(二
冷却ダクトを個々(=絶縁パイプを介して直接導液管(
=接続するのではなく、各冷却ダクトを巻線端面(=沿
わせて配置した導液部材(=共通接続して、この導液部
材の低圧巻線側部分に導液管を接続した構成のものであ
り、この変圧器は冷却ダクトな導液管(=直接接続せず
(−絶縁性の導液部材に接続しているから、この冷却ダ
クトの接続部における沿面絶縁破壊の問題は全くなくな
るし、また導液部材に対する導液管接続位置は低圧側に
あるため(二導液管W続部(1加わる電圧はかなり低い
から、この部分での沿面絶縁破壊もなく、従ってその信
頼性はかなり高いから高圧化を実現することができる。That is, the transformer of the present invention, like a conventional transformer, has two separate cooling ducts (= direct liquid conduction pipes (= directly connected through insulated pipes).
=Instead of connecting each cooling duct to the winding end face (=liquid guiding member placed along the winding end face (=liquid guiding member placed along the winding end face) (=commonly connected, and connecting the liquid guiding pipe to the low voltage winding side portion of this liquid guiding member) Since this transformer is connected to an insulating liquid guide member (not directly connected to the cooling duct), there is no problem of creeping dielectric breakdown at the connection part of the cooling duct. However, since the connection position of the liquid guide pipe to the liquid guide member is on the low pressure side (two liquid guide pipes W connection part (1), since the applied voltage is quite low, there is no creeping dielectric breakdown in this part, and therefore its reliability is low. Since it is quite high, high pressure can be achieved.
以下、本発明の一実施例を図面を参照して説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第2図において1図中101は低圧巻線4と高圧巻線5
とからなる巻線の上下両端面(−沿わせて設けられたテ
フロン(4フツ化エチレン樹り旨)等の絶縁材からなる
導液部材であり、この導液部材101は例えば第3図(
−示すよう(二、中心部(=鉄心主脚挿通孔な設けた平
形円板状の中空容器とされている。102はこの導液部
材101の低圧巻線4側の部分例えば鉄心主脚挿通孔の
固壁の一部(二設けられた導液管接続口であり、この導
液管接続口には冷媒を導びく金楓製尋液管10が絶縁性
の連結パイプ103を介して接続されている。また、前
記低圧巻線4及び高圧巻線5円(二内蔵された冷却ダク
ト6.6の両端は、前記上下の導液部材101,101
にそれぞれ共通接続されている。In Figure 2, 101 in Figure 1 is the low voltage winding 4 and the high voltage winding 5.
It is a liquid guiding member made of an insulating material such as Teflon (tetrafluoroethylene), which is provided along both the upper and lower end surfaces (-) of a winding consisting of a winding, and this liquid guiding member 101 is illustrated in FIG.
- As shown in (2), it is a flat disc-shaped hollow container with a central part (= core main leg insertion hole). A part of the solid wall of the hole (two liquid guide pipe connection ports are provided, and a gold maple fattening liquid pipe 10 for guiding the refrigerant is connected to this liquid guide pipe connection port via an insulating connecting pipe 103). In addition, both ends of the low-voltage winding 4 and the high-voltage winding 5 (two built-in cooling ducts 6.6
are commonly connected to each other.
なお、弗2図(=おいて第1図(−示したものと同一の
ものについては図に同符号を付してその説明を省略する
。また、前記巻線4,5及び冷却ダクト6.6は従来の
ものと同じものであり、さらにタンク12円にも従来の
変圧器と同様(=絶縁油あるいは8F。ガス等の絶縁媒
体が刺入されている。Note that the same parts as those shown in Figure 1 (-) in Figure 2 (=) are given the same reference numerals in the figures and their explanations are omitted. 6 is the same as the conventional one, and the tank 12 yen is also filled with an insulating medium such as insulating oil or 8F gas.
しかして、この変圧器(二おいては、ポンプ7(−よっ
て送られる冷媒は、下側の導液管10及び連結パイプ1
03を通って下側の導液部材101円に入り、各冷却ダ
ク)6.6に分流して各冷却ダクト6.6円を通る過程
で巻線を冷却し、さら(二蒸発した冷媒は上側の導液部
材101(二おいて合流して上側の連結パイプ103及
び導液管10を通って凝縮器8(=入る。Therefore, the refrigerant sent by the transformer (2) and the pump 7 (-) are transferred to the lower liquid guide pipe 10 and the connecting pipe 1.
03, enters the lower liquid guiding member 101 yen, is divided into each cooling duct) 6.6, cools the winding in the process of passing through each cooling duct 6.6 yen, and further (2 evaporated refrigerant is They join together at the upper liquid guide member 101 (2), pass through the upper connecting pipe 103 and the liquid guide pipe 10, and enter the condenser 8 (==).
そして、この変圧器は、従来の変圧器のよう(1各冷却
ダクト6.6を絶縁パイプ(二より直接導液管10(=
接続するものではないから、従来の変圧器において生じ
ていた冷却ダクト接続部における沿面絶縁破壊という問
題は全くなく、また導液部材101(二対する導液管1
0の接続位置は低圧側にあるため(1導液管接続部(=
加わる電圧はかなり低いがら、この部分での78曲絶縁
破壊もない。さらにこの変圧器(二おいては。And this transformer is similar to the conventional transformer (1 each cooling duct 6. 6 insulated pipes (2) direct liquid conduit 10 (=
Since it is not connected, there is no problem of creeping dielectric breakdown at the cooling duct connection part that occurred in conventional transformers.
Since the connection position of 0 is on the low pressure side (1 liquid guide pipe connection (=
Although the applied voltage is quite low, there is no dielectric breakdown at this part. In addition, this transformer (second part).
前記導液部材101が巻線4,5と導液管10との間を
さえぎる絶縁体となるという利点もある。There is also an advantage that the liquid guide member 101 serves as an insulator that blocks the space between the windings 4 and 5 and the liquid guide pipe 10.
なお、上記実施例では導液部材101として円板状の中
空容器を用いているが、この導液部材101としては、
例えば第4図(−示すようなうず巻状の絶縁性パイプや
、$5図に示すような円外(二部された複数のリンク状
パイプを連通管を介して接続したもの等を用いてもよい
。Note that in the above embodiment, a disc-shaped hollow container is used as the liquid guiding member 101, but as this liquid guiding member 101,
For example, you can use a spiral insulating pipe as shown in Figure 4 (-), or a circular insulating pipe as shown in Figure $5 (two-part link-shaped pipe connected via a communicating pipe). Good too.
以上のように、本発明の変圧器は、巻線の両端面に沿わ
せてそれぞれ絶縁性の導液部材な配置し、巻線内に内蔵
されている各冷却ダクトの両端をそれぞれ前記導液部材
に共通接続すると共(−1前記冷却ダクトに通される冷
媒を導びく導液管を前記導液部材の低圧巻線側部分(=
接続したことを特徴とするものであるから、冷却ダクト
と導液管との接続部(二おける沿面絶縁破壊という問題
はなく、従って伯゛頼性が高く、高圧化を実現すること
ができる。As described above, in the transformer of the present invention, insulating liquid guide members are arranged along both end faces of the winding, and both ends of each cooling duct built in the winding are connected to the liquid guide member. (-1) A liquid guiding pipe for guiding the refrigerant to be passed through the cooling duct is connected to the low voltage winding side portion of the liquid guiding member (=
Since it is characterized by a connection, there is no problem of creeping dielectric breakdown at the connection between the cooling duct and the liquid guide pipe, and therefore, reliability is high and high pressure can be realized.
第1図は従来の変圧器を示す断面図、第2区及び第3図
は本発明の一実施例を示す断面図及び導液部材の斜視図
、第4図及び第5図はそれぞれ導液部材の変形例を示す
斜視図である。
1・・・鉄心主脚、2・・・金属シート、3・・・絶1
1#シート、4・・・低圧巻線、5・・・高圧巻線、6
・・・冷却ダクト、10・・・導液管、1o1・・・導
液部材、102・・・導液管接続口、103・・・連結
パイプ。
出願人代理人 弁理土鈴 江 武 彦
0
第1図
8
11 10
第2図Fig. 1 is a sectional view showing a conventional transformer, Sections 2 and 3 are sectional views showing an embodiment of the present invention and a perspective view of a liquid guiding member, and Figs. 4 and 5 are respectively It is a perspective view which shows the modification of a member. 1... Iron core main landing gear, 2... Metal sheet, 3... Absolute 1
1# sheet, 4...low voltage winding, 5...high voltage winding, 6
...Cooling duct, 10...Liquid guide pipe, 1o1...Liquid guide member, 102...Liquid guide pipe connection port, 103...Connecting pipe. Applicant's agent Takehiko E Takehiko Patent attorney 0 Figure 1 8 11 10 Figure 2
Claims (3)
巻線からなる低圧巻線と高圧巻線を備え、かつこの巻線
内(=冷媒が通される複数の冷却ダクトなPg蔵した変
圧器において、前記巻線の両端面(=沿わせてそれぞれ
絶縁性の導液部材を配置し、前記各冷却ダクトの両端を
それぞれ前記導液部材(=共通接続すると共(=、前記
冷却ダクト(1通される冷媒を導びく導液管を前記導液
部材の低圧巻線側部分(−接続したことを特徴とする変
圧器。(1) It is equipped with a low-voltage winding and a high-voltage winding made of foil-wound windings made by overlapping metal sheets and insulating sheets, and inside these windings (= multiple cooling ducts through which refrigerant passes) In the device, insulating liquid guide members are arranged along both end faces (== of the windings), and both ends of each of the cooling ducts are connected in common to the liquid guide members (==, and the cooling ducts (== are connected together). A transformer characterized in that a liquid guide pipe for guiding a refrigerant to be passed through is connected to a low voltage winding side portion (-) of the liquid guide member.
とする特許請求の範囲第(1)項記載の変圧器。(2) The transformer according to claim (1), wherein the conductive member comprises a disc-shaped hollow container.
特徴とする特許請求の範囲第(1)項記載の変圧器。 (41導電部材は内外(=配された複数のリング状パイ
プな連通管を介して接続したものであることを特徴とす
る特許請求の範囲第11)項記載の変圧器。 (51傳液管は絶縁性の連結パイプを介して導電部材に
接続されていることを特徴とする特許請求の範囲第11
)項〜@+41項のいずれか(二記載の変圧器。(3) The transformer according to claim (1), wherein the conductive member is a spiral pipe. (41) The transformer according to claim 11, characterized in that the conductive members are connected via a plurality of ring-shaped communicating pipes arranged inside and outside. Claim 11 is characterized in that the is connected to the conductive member via an insulating connecting pipe.
) to @+41 (the transformer described in 2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16133581A JPS5863110A (en) | 1981-10-09 | 1981-10-09 | Transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16133581A JPS5863110A (en) | 1981-10-09 | 1981-10-09 | Transformer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5863110A true JPS5863110A (en) | 1983-04-14 |
Family
ID=15733120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16133581A Pending JPS5863110A (en) | 1981-10-09 | 1981-10-09 | Transformer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5863110A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106257604A (en) * | 2015-06-18 | 2016-12-28 | Ls 产电株式会社 | The chiller of power transformer |
CN112420338A (en) * | 2020-11-11 | 2021-02-26 | 广东电网有限责任公司 | Protective transformer and safe heat dissipation method thereof |
CN112435834A (en) * | 2020-11-13 | 2021-03-02 | 广东电网有限责任公司 | Transformer oil cooler |
-
1981
- 1981-10-09 JP JP16133581A patent/JPS5863110A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106257604A (en) * | 2015-06-18 | 2016-12-28 | Ls 产电株式会社 | The chiller of power transformer |
EP3116000A1 (en) * | 2015-06-18 | 2017-01-11 | LSIS Co., Ltd. | Cooling device of power transformer |
US9818525B2 (en) | 2015-06-18 | 2017-11-14 | Lsis Co., Ltd. | Cooling device of power transformer |
CN112420338A (en) * | 2020-11-11 | 2021-02-26 | 广东电网有限责任公司 | Protective transformer and safe heat dissipation method thereof |
CN112435834A (en) * | 2020-11-13 | 2021-03-02 | 广东电网有限责任公司 | Transformer oil cooler |
CN112435834B (en) * | 2020-11-13 | 2022-03-29 | 广东电网有限责任公司 | Transformer oil cooler |
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JPS6174310A (en) | Foil wound transformer | |
JPS5893205A (en) | Transformer | |
JPS58122709A (en) | Foil wound transformer | |
JPS5878406A (en) | Foil wound transformer | |
JPS6057604A (en) | Foil-wound transformer | |
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JPS59222912A (en) | Foil wound transformer | |
JPS5879710A (en) | Foil wound transformer | |
JPS5877210A (en) | Transformer | |
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JPS61196507A (en) | Foil wound transformer | |
JPH0616453B2 (en) | Foil winding transformer | |
JPS6250047B2 (en) |